JP4823358B2 - 無線通信装置 - Google Patents

無線通信装置 Download PDF

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Publication number
JP4823358B2
JP4823358B2 JP2009525183A JP2009525183A JP4823358B2 JP 4823358 B2 JP4823358 B2 JP 4823358B2 JP 2009525183 A JP2009525183 A JP 2009525183A JP 2009525183 A JP2009525183 A JP 2009525183A JP 4823358 B2 JP4823358 B2 JP 4823358B2
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JP
Japan
Prior art keywords
base station
fourier transform
signal
timing
correlation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2009525183A
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English (en)
Japanese (ja)
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JPWO2009016688A1 (ja
Inventor
学 柴田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of JPWO2009016688A1 publication Critical patent/JPWO2009016688A1/ja
Application granted granted Critical
Publication of JP4823358B2 publication Critical patent/JP4823358B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0093—Neighbour cell search
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2009525183A 2007-08-02 2007-08-02 無線通信装置 Expired - Fee Related JP4823358B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000832 WO2009016688A1 (ja) 2007-08-02 2007-08-02 無線通信装置

Publications (2)

Publication Number Publication Date
JPWO2009016688A1 JPWO2009016688A1 (ja) 2010-10-07
JP4823358B2 true JP4823358B2 (ja) 2011-11-24

Family

ID=40303936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009525183A Expired - Fee Related JP4823358B2 (ja) 2007-08-02 2007-08-02 無線通信装置

Country Status (4)

Country Link
US (1) US8155087B2 (de)
EP (1) EP2184867B1 (de)
JP (1) JP4823358B2 (de)
WO (1) WO2009016688A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2245879A1 (de) * 2008-01-30 2010-11-03 Telefonaktiebolaget LM Ericsson (publ) Konfigurationsmessungszeitschlitze für mobile endgeräte in einem tdd-system
US8111783B2 (en) * 2008-06-17 2012-02-07 Cisco Technology, Inc. Capturing and using radio events
CN101986572B (zh) * 2009-07-29 2013-10-16 中兴通讯股份有限公司 正交频分复用系统中随机接入信号的检测方法与装置
US8693305B2 (en) * 2009-08-24 2014-04-08 Qualcomm Incorporated Method and apparatus for detecting OFDM signals in the presence of frequency orthogonal OFDM interferers
US8503553B2 (en) * 2009-12-17 2013-08-06 Texas Instruments Incorporated Pilot subcarriers in wireless transmissions
JP5565165B2 (ja) 2010-07-21 2014-08-06 富士通株式会社 Ｏｆｄｍ通信受信装置
US9014285B2 (en) * 2011-09-05 2015-04-21 Mitsubishi Electric Corporation Receiving apparatus and receiving method
US8254498B1 (en) * 2012-02-28 2012-08-28 On-Ramp Wireless, Inc. Random orthogonal frequency division multiplexing
WO2014069587A1 (ja) * 2012-11-02 2014-05-08 シャープ株式会社 基地局装置、端末装置、通信システム、送信方法、受信方法、通信方法および集積回路
JP6145772B2 (ja) * 2013-06-28 2017-06-14 パナソニックＩｐマネジメント株式会社 チャンネル判定方法および無線通信装置
US9385778B2 (en) 2014-01-31 2016-07-05 Qualcomm Incorporated Low-power circuit and implementation for despreading on a configurable processor datapath

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000134667A (ja) * 1998-10-29 2000-05-12 Mitsubishi Electric Corp 移動体通信システム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2361247C (en) * 2000-11-06 2008-10-07 Ntt Docomo, Inc. Transmitter, transmitting method, receiver, and receiving method for mc-cdma communication system
JP2002300628A (ja) 2001-04-02 2002-10-11 Matsushita Electric Ind Co Ltd ハンドオーバーの処理方法及びその送受信装置
US7042858B1 (en) * 2002-03-22 2006-05-09 Jianglei Ma Soft handoff for OFDM
EP1443682B1 (de) * 2003-01-31 2010-05-26 NTT DoCoMo, Inc. Übertragungssynchronisierung
KR100659937B1 (ko) * 2004-10-12 2006-12-21 삼성전자주식회사 무선통신시스템에서 셀 인식 및 하향링크 동기를 획득하기위한 장치 및 방법
JP2006246440A (ja) * 2005-02-03 2006-09-14 Toshiba Corp 無線通信端末及びハンドオーバ制御方法
JP2006333452A (ja) 2005-04-28 2006-12-07 Matsushita Electric Ind Co Ltd 移動体通信システムを構成する基地局及び移動局
US20060245390A1 (en) 2005-04-28 2006-11-02 Yukihiro Omoto Base station and mobile station constituting mobile communication system
US8665799B2 (en) * 2006-09-14 2014-03-04 Qualcomm Incorporated Beacon assisted cell search in a wireless communication system
JP5233454B2 (ja) * 2008-07-08 2013-07-10 富士通株式会社 移動端末局および受信品質測定方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000134667A (ja) * 1998-10-29 2000-05-12 Mitsubishi Electric Corp 移動体通信システム

Also Published As

Publication number Publication date
EP2184867A1 (de) 2010-05-12
EP2184867B1 (de) 2018-02-14
JPWO2009016688A1 (ja) 2010-10-07
US20100118694A1 (en) 2010-05-13
EP2184867A4 (de) 2014-07-23
US8155087B2 (en) 2012-04-10
WO2009016688A1 (ja) 2009-02-05

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